EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

Find the prime factorization of
1140

(i)

2 2

✕

3

✕

5

✕

18
(ii)

2 2

✕

3

✕

3

✕

19
(iii)

2 2

✕

3

✕

7

✕

19
(iv)

2 3

✕

3

✕

5

✕

19
(v)

2 2

✕

3

✕

5

✕

19

Question 2

2.

Find the prime factorization of
57

(i)

3

✕

19
(ii)

3

✕

17
(iii)

2

✕

19
(iv)

3

✕

19 2
(v)

3

✕

21

Question 3

3.

The factors of 77 =

(i)

{7,77,10,76}
(ii)

{1,7,11,77,10,6}
(iii)

{1,7,11,77,76}
(iv)

{1,7,11,77}
(v)

{7,11,77,6}

Question 4

4.

Find the LCM of
{10,6,18}

(i)

87
(ii)

91
(iii)

90
(iv)

93
(v)

89

Question 5

5.

Which of the following numbers is divisible by 5?

(i)

4517
(ii)

4515
(iii)

4513
(iv)

4514
(v)

4516

Question 6

6.

The factors of 62 =

(i)

{1,2,31,62,3,61}
(ii)

{1,2,31,62,61}
(iii)

{1,2,31,61}
(iv)

{1,62,2,3}
(v)

{1,2,31,62}

Question 7

7.

Find the product of LCM and HCF of
{27,12,16,25}

(i)

10800
(ii)

10798
(iii)

10799
(iv)

10803
(v)

10801

Question 8

8.

Find the LCM of
{280,80,240,560}

(i)

1680
(ii)

1682
(iii)

1679
(iv)

1681
(v)

1678

Question 9

9.

What is the number that divides
{5094,1063,3499}
leaving a remainder of
19

(i)

29
(ii)

32
(iii)

28
(iv)

26
(v)

30

Question 10

10.

The multiples of 7 =

(i)

{7,14,21,28,35,42,8}
(ii)

{7,14,28,35,42,8}
(iii)

{7,14,28,35,22,29}
(iv)

{7,14,21,28,35,42}
(v)

{7,14,21,28,35,42,36,22}

Question 11

11.

Which of the following numbers is divisible by 10?

(i)

2629
(ii)

2628
(iii)

2632
(iv)

2631
(v)

2630

Question 12

12.

Find the number of prime factors of
32

(i)

3
(ii)

2
(iii)

0
(iv)

1
(v)

4

Question 13

13.

Which of the following numbers is divisible by 3?

(i)

7727
(ii)

7730
(iii)

7729
(iv)

7728
(v)

7726

Question 14

14.

The common multiples of 6 , 4 and 8 =

(i)

{24,48,72,96,120,144}
(ii)

{24,48,72,96,144,91}
(iii)

{24,48,72,120,144,125}
(iv)

{48,72,96,120,144,91}
(v)

{24,48,96,120,144,185}

Question 15

15.

Find the LCM of
{144,132}

(i)

1582
(ii)

1585
(iii)

1583
(iv)

1586
(v)

1584

Question 16

16.

Find the L.C.M of
40
14

,

18
39

,

35
45

(i)

2523
(ii)

2519
(iii)

2520
(iv)

2518
(v)

2521

Question 17

17.

Find the H.C.F of
35
46

,

9
49

(i)

1
2256
(ii)

3
2254
(iii)

1
2252
(iv)

(
-1
2254
)
(v)

1
2254

Question 18

18.

Find the prime factorization of
4200

(i)

2 2

✕

3

✕

5 2

✕

7
(ii)

2 3

✕

3

✕

5 2

✕

7 2
(iii)

2 3

✕

1

✕

5 2

✕

7
(iv)

2 3

✕

3

✕

5 2

✕

7
(v)

2 3

✕

3

✕

5 2

✕

10

Question 19

19.

Find the HCF of
{15,9}

(i)

0
(ii)

5
(iii)

2
(iv)

4
(v)

3

Question 20

20.

Find the L.C.M of
32
45

,

24
44

(i)

98
(ii)

93
(iii)

96
(iv)

95
(v)

97

Question 21

21.

Find the HCF of
{39,44}

(i)

0
(ii)

(-1)
(iii)

2
(iv)

4
(v)

1

Question 22

22.

The common multiples of 7 and 9 =

(i)

{63,189,252,235}
(ii)

{63,126,189,111}
(iii)

{126,189,252,260}
(iv)

{63,189,252,341}
(v)

{63,126,189,252}

Question 23

23.

The multiples of 8 =

(i)

{8,16,24,32,40,48,49}
(ii)

{8,16,24,32,40,17}
(iii)

{8,16,24,32,40,48}
(iv)

{8,16,40,48,49,39}
(v)

{8,16,24,32,40,48,7,31}

Question 24

24.

Find the HCF of
{60,280}

(i)

19
(ii)

23
(iii)

21
(iv)

17
(v)

20

Question 25

25.

Find the HCF of
{46,49,28,21}

(i)

1
(ii)

0
(iii)

(-1)
(iv)

4
(v)

2

Assignment Key